using System;
using System.Collections.Generic;
using System.Text;

namespace MaskData
{
	public class BiggerOperator : ConditionOperator
	{
		public override String GetSQLString()
		{
			return " > ";
		}
	}

	public class LessOperator : ConditionOperator
	{
		public override String GetSQLString()
		{
			return " < ";
		}
	}

	public class EqualOperator : ConditionOperator
	{
		public override String GetSQLString()
		{
			return " = ";
		}
	}

	public class NotEqualOperator : ConditionOperator
	{
		public override String GetSQLString()
		{
			return " <> ";
		}
	}

	public class BiggerEqualOperator : ConditionOperator
	{
		public override String GetSQLString()
		{
			return " >= ";
		}
	}

	public class LessEqualOperator : ConditionOperator
	{
		public override String GetSQLString()
		{
			return " <= ";
		}
	}
}
